Short message retransmitting method and short message retransmitting system

Abstract

A method for resending short message includes sending short message being failed in retransmission to large capacity buffer storage of intermediate entity for storing by session and dispatch controller in intermediate entity, informing session set-up of said storage and dispatch principle corresponding to information resource station entity by said controller, triggering said storage to start short message dispatch according to said dispatch principle to send dispatched short message to said controller being used to resend short message to information resource station entity.

Description

technical field [0001] The invention relates to mobile communication technology, specifically a short message retransmission method and a short message retransmission system. Background technique [0002] Such as figure 1 As shown, the short message retransmission system composed of a service provider (SP: Service Provider) and a short message gateway (ISMG) is a kind of existing short message retransmission system between network elements. ISMG (Internet ShortMessage Gateway) is an intermediary entity between the external information resource station entity (SP) and the short message center (SMSC: Shortmessage service center), used to realize the interconnection of short message services and provide a data exchange channel. [0003] Such as figure 1 As shown, SP and ISMG can be connected through TCP or X.25 communication link (LINK) to provide communication interface for SP and ISMG. The interface protocol used between the communication interface can be changed according ...

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Problems solved by technology

[0010] But above-mentioned method resends short message to have following shortcoming: (1) because between different business types of SP, for the reliability of short message and real-time requirement, so the short message of different business type should adopt different dispatching principle

However, Fast Cache can only be triggered periodically, that is, Fast Cache can only use the first-in-first-out (FIFO) principle to schedule short messages, so Fast Cache cannot select the short message scheduling principle according to the difference of SP services

[0011] (2) When Fast Cache sends a short message to the SSC, it does not consider the online status of the receiving side of the short message. As long as the link between the SP and the ISMG is disconnected or the session is not established, the ISMG cannot successfully forward the short message to the SP. It is easy to cause a large number of short message retransmission failures, which can only waste the computing power of the gateway

[0012] (3) Fast Cache exists as an independent process in the computer system, and its cache capacity is limited. When a large number of short messages need to be resent due to sending failures, it is easy to cause the resend buffer of Fast Cache to overflow, eventually resulting in a large number of short messages. The message cannot enter the Fast Cache and the resend fails

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